... , sch160 3.Use: Petroleum, chemical, power,etc ProductsPIPES, Elbow, Bend, Tee ,Reducers ,Flange ,Cap , Corrugated Expansion Joint, Metal hoseMaterialASTM:A234-WPB ... , EN10253-2UsePetroleum, Chemical, Power, Gas, Metallurgy, Shipbuilding, Construction, etc seamless steel pipe